Display rack



FIG. 1 is a perspective view of a display rack showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof, the rear elevation being a mirror image thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a left side elevational view thereof, the right side elevation being a mirror image thereof. 

The ornamental design for a display rack, as shown and described. 